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java Programming Glossary: takesWhat's the nearest substitute for a function pointer in Java? http://stackoverflow.com/questions/122407/whats-the-nearest-substitute-for-a-function-pointer-in-java StringFunction int function String param A method that takes the pointer would just accept StringFunction instance like so..
How can I lock a file using java (if possible) http://stackoverflow.com/questions/128038/how-can-i-lock-a-file-using-java-if-possible and doing some calculations based on the contents and it takes about 2 minutes. I also have another java app that does the..
How do I time a method's execution in Java? http://stackoverflow.com/questions/180158/how-do-i-time-a-methods-execution-in-java Timer utility class for things like timing how long a task takes etc Most of the searches on Google return results for timers..
What is the difference between JSF, Servlet and JSP? http://stackoverflow.com/questions/2095397/what-is-the-difference-between-jsf-servlet-and-jsp FacesServlet as the sole request response Controller . It takes all the standard and tedious HTTP request response work from..
Which Html Parser is best? [closed] http://stackoverflow.com/questions/2168610/which-html-parser-is-best just parsing I want to use a light html parser because it takes much time in HtmlUnit to first load a page then get the source..
Why do I need to override the equals and hashCode methods in Java? http://stackoverflow.com/questions/2265503/why-do-i-need-to-override-the-equals-and-hashcode-methods-in-java hashCode then when you call myMap.put first someValue it takes first calculates its hashCode and stores it in a given bucket...
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android RAM. The Pss number is a metric the kernel computes that takes into account memory sharing basically each page of RAM in a..
What is the memory consumption of an object in Java? http://stackoverflow.com/questions/258120/what-is-the-memory-consumption-of-an-object-in-java this question According to JavaWorld A plain Object takes 8 bytes So 'no' is the answer. Note In addition JDK 1.5 has.. greatly differ. For example a int 128 2 instance takes 3 600 bytes. Compared to the 1 040 bytes an int 256 instance..
Avoiding “!= null” statements in Java? http://stackoverflow.com/questions/271526/avoiding-null-statements-in-java Parser Action findAction String userInput where Parser takes raw user input and finds something to do perhaps if you're implementing..
http://stackoverflow.com/questions/2723397/java-generics-what-is-pecs improve this question Suppose you have a method that takes as its parameter a collection of things but you want it to be..
What is a raw type and why shouldn't we use it? http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it illustrate the point consider the following method which takes a List Object and appends a new Object . void appendNewObject..
Round a double to 2 decimal places http://stackoverflow.com/questions/2808535/round-a-double-to-2-decimal-places use BigDecimal . And while at it use the constructor that takes a String never the one taking double System.out.println new..
http://stackoverflow.com/questions/299068/how-slow-are-java-exceptions of the CPU are written to the stack which already takes some time and possibly some other data needs to be created..... however if no exception is thrown exiting the try block takes no time whatsoever in most cases as everything is put on the..
When to use LinkedList<> over ArrayList<>? http://stackoverflow.com/questions/322715/when-to-use-linkedlist-over-arraylist forwards or backwards but finding a position in the list takes time proportional to the size of the list. ArrayList E on the..
http://stackoverflow.com/questions/3481828/how-to-split-a-string-in-java parts 0 004 String part2 parts 1 034556 note that this takes a regular expression so remember to escape special characters..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications own. Learning an existing and well developed framework takes in long term less time than developing and maintaining a robust..
Generate/get xpath from XML node java http://stackoverflow.com/questions/4746299/generate-get-xpath-from-xml-node-java Below is a sample xml document and a stylesheet that takes a node set parameter and produces one valid XPath expression..
What are the reasons why Map.get(Object key) is not (fully) generic http://stackoverflow.com/questions/857420/what-are-the-reasons-why-map-getobject-key-is-not-fully-generic they be equal. This follows from how the equals method takes in an Object as parameter not just the same type as the object...
Why Java OutputStream.write() Takes Integer but Writes Bytes http://stackoverflow.com/questions/1407893/why-java-outputstream-write-takes-integer-but-writes-bytes Java OutputStream.write Takes Integer but Writes Bytes I am writing an OutputStream just..
android what is wrong with openFileOutput? http://stackoverflow.com/questions/3625837/android-what-is-wrong-with-openfileoutput improve this question Your method should be as follows. Takes in an extra Context as a parameter. To this method you can pass..
http://stackoverflow.com/questions/4089717/setopaque-in-java JInternalFrame is moved or resized Makes itself invisible Takes a screen shot of where it was in the container its contained..
http://stackoverflow.com/questions/4948152/need-sample-android-rest-client-project-which-implements-virgil-dobjanschi-rest but I'm pretty sure is a good way to go. RESTMethod class Takes the parameters the WS resource http myservice.com service path..
Database not copying from assets http://stackoverflow.com/questions/5945196/database-not-copying-from-assets myDataBase private final Context myContext Constructor Takes and keeps a reference of the passed context in order to access..
onUpgrade database - oldVersion - newVersion http://stackoverflow.com/questions/7173896/onupgrade-database-oldversion-newversion int DATABASE_VERSION myDataBase.getVersion Constructor Takes and keeps a reference of the passed context in order to access..
PropertyPermission access denied in JWS launch http://stackoverflow.com/questions/8269698/propertypermission-access-denied-in-jws-launch UTF 8 jnlp spec 1.0 codebase href information title Applet Takes Params title vendor Protype example vendor information resources..
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